my cat just said HELL should i be concerned.
( i am dead serious not hello just HELL)

Answer:

4,000 mL of H2O

Answer: the answer is A

Explanation:

Answer:

c the pressure increases

Answer:

V₂ = 238.05 L

Explanation:

Given data:

Final volume = ?

Initial volume = 13.40 L

Initial pressure = 1.51 atm

Final pressure = 65 mmHg ( 65/760 = 0.085 atm)

Solution:

The given problem will be solved through the Boyle's law,

"The volume of given amount of gas is inversely proportional to its pressure by keeping the temperature and number of moles constant"

Mathematical expression:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = initial volume

P₂ = final pressure

V₂ = final volume  

Now we will put the values in formula,

P₁V₁ = P₂V₂

1.51 atm × 13.40 L = 0.085 atm × V₂

V₂ = 1.51 atm × 13.40 L /  0.085 atm

V₂ = 238.05 L

Answer:

1.993 × 10^(24) moles

Explanation:

From avogadro's number, we have that;

1 mole of atoms contain 6.022 × 10^(23) atoms

Therefore, 1.2 x 10^(48) atoms of copper will contain;

(1.2 x 10^(48) × 1)/(6.022 × 10^(23)) = 1.993 × 10^(24) moles

Answer:

The DNA would be too difficult to separate without this organization.

Explanation:

DNA is usually wrapped loosely, but when ready to divide it wraps tighter. It's so each chromosome is a distinct unit. When the cell divides one copy goes to each of the resulting cells. If not lined up properly sereve genetic issues can occur. Chromosome alignment makes the process more efficient.

When placed in distilled water, the pH of metal oxides will be greater than 7. The correct option is C.

Metal oxides are crystalline solids containing both a metal cation and an oxide anion. In most cases, they react with water to form bases or with acids to form salts.

Metal oxides are compounds that contain two elements, namely a metal and an oxygen atom. Examples include sodium oxide (Na2O), magnesium oxide (MgO), calcium oxide (CaO), and others.

When metal oxides react with dilute acids, they form salt and water, demonstrating that they are basic.

Metal oxides are alkaline. When we dissolve them in water, we get solutions with pH values higher than 7. The reaction between a nonmetal and oxygen produces nonmetal oxides. Nonmetal oxides are highly acidic.

Thus, the correct option is C.

For more details regarding metal oxides, visit:

https://brainly.com/question/22966565

#SPJ2

Thanks! also that's a lot use a calculator.!

Answer:

A and D

Explanation:

unsaturated hydrocarbons have double or triple bonds

Answer:

The answer is Speed= Distance ÷ Time

Explanation:

To work out what the units are for speed, you need to know the units distance and time.

Answer:

Prevailing winds (sea breeze) from the ocean push warm moist air against the mountain & it moves up. As the moist air rises, it begins to get cooler and cooler due to the high altitude. ... Dry Air Since the air already lost its moisture, the humidity on this side is low & plants get very little water.

Explanation:

The oceans influence climate by absorbing solar radiation and releasing heat needed to drive the atmospheric circulation, by releasing aerosols that influence cloud cover, by emitting most of the water that falls on land as rain, by absorbing carbon dioxide from the atmosphere and storing it for years t

Answer:

A better term than

covalency

might be

molecularity

. Molecular species TEND to have reduced melting points and boiling points with respect to non-molecular species. Non molecular species, which include sodium chloride, and graphite, and diamond, thus have much HIGHER melting points than methane or ethane, or water, which are composed of discrete molecules.

Explanation:

Answer:

B mixture can be separated by physical means

Answer:

this is compound ok or not

Answer:

Yes

Explanation:

Answer:

THATS WHAT SHE SAID

Explanation:

Answer:

604,800 seconds in a week

Explanation:

86,400 seconds in a day

86,400 × 7 = 604,800

Answer:

Here is ur answer...

Explanation:

2) Half-filled d orbital increases the stability of the element.

Answer:

Explanation:

The mass of the object can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{100}{5} = 20 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

the density of an object determines whether it will sink or float

Answer:

Its B,C,E

Explanation:

Answer:

B

Explanation:

it uses the process of the light reaction stage and Calvin cycle to trap sunlight in the day and make food at night

Answer:

I think the answer is A or B

Answer:

stratosphere

Explanation:

The stratosphere is crucial to life on Earth because it contains small amounts of ozone, a form of oxygen that prevents harmful UV rays from reaching Earth.

Answer:

B.  

Butter is a mixture of pure substances.

Explanation:

just poop and you will see

Answer:

B

Explanation:

I am not sure why

Answer:

Yea I think B as well!!!!!

Answer:

Ions form when atoms gain or lose electrons. Since electrons are negatively charged, an atom that loses one or more electrons will become positively charged; an atom that gains one or more electrons becomes negatively charged. Ionic bonding is the attraction between positively- and negatively-charged ions.

Answer:

horizontal tricolor with three equal-sized stripes of blue, black and green.

Explanation:

hope this is what u want

Answer: ↓

Black and Vivid Cerulean,

Answer:

Ca2+

Explanation:

Answer:

Nitrogen has an atomic number of 7 (Z=7) because it has 7 protons in its nucleus. Some nitrogen atoms have an atomic mass number of 15 (A=15). A is the number of neutrons plus protons in the nucleus. However, we already know that there are 7 protons

Answer:

Atomic number = Number of protons = Number of electrons

Atomic number = 7

Answer:

Molecular formula describes about number of atoms of each constituent element present in any molecule.

Explanation:

Molecular formula describe about the number and type of atoms in any molecule.  A molecular formula is not a chemical name but instead it is a chemical formula of a compound. A molecular formula consist of chemical symbols for constituent elements followed by numeric subscripts which tells us about number of atoms of each element present in a molecule. For example : Ammonia is a compound of nitrogen and hydrogen i.e NH₃ . As there is only one N atom so we have written only N in it's molecular formula. But as there are 3-H atoms so we have written subscript 3 in H symbol in it's molecular formula. Molecular formula does not tell us anything about shape of molecule .

Answer:In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction

Explanation:

Answer:

EEEEEeeEEeEEEEEEEeEEEEEEEEEE

Explanation:

e

Answer:

D

Explanation:

The answer should be D, when the size of an object changes it changes how much mass it has how heavy it is (weight), and how much space it takes up (volume).